Definition of atomic number 55 Atomic number 55
We found 1 definitions of atomic number 55 from 1 different sources.
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What does atomic number 55 mean?
WordNet
Noun |
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| atomic number 55 - a soft silver-white ductile metallic element (liquid at normal temperatures); the most electropositive and alkaline metal | ||
| cesium, caesium, Cs | ||
| metallic element, metal any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc. | ||
| pollucite a rare mineral that is an important source of cesium | ||
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